I has always amazed me how much effort goes into technological attempts to reverse a condition that can be reliably prevented and even reversed in the overwhelming majority of sufferers up until fairly late stages by simply eating less. Eating less is so amazingly unpopular that people would rather suffer and die waiting on therapies than do the one thing already known to work.
In people with Type 2 diabetes of more than 8 years' duration, a therapeutic trial of a very-low-calorie diet may be undertaken with a 50% chance of achieving non-diabetic fasting glucose levels, with all other antidiabetic therapies discontinued.
http://www.bbc.co.uk/news/health-13887909
An extreme eight-week diet of 600 calories a day can reverse Type 2 diabetes in people newly diagnosed with the disease.
http://dx.doi.org/10.1111/dme.12722
In people with Type 2 diabetes of more than 8 years' duration, a therapeutic trial of a very-low-calorie diet may be undertaken with a 50% chance of achieving non-diabetic fasting glucose levels, with all other antidiabetic therapies discontinued.